Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
03/1993
03/10/1993EP0531171A2 Electrostatic target recalculation in a xerographic imaging apparatus
03/10/1993EP0531170A2 Method for quantization gray level pixel data with application of under compensated error diffusion
03/10/1993EP0531168A1 Self calibrating PWM
03/10/1993EP0531167A2 Electrostatic voltmeters readings of toner test patches for adjusting IR densitometer readings of developed test patches
03/10/1993EP0531166A1 Seam-less data recovery
03/10/1993EP0531160A2 Toner dispensing rate adjustment
03/10/1993EP0531129A2 Screen generation for halftone screening of images
03/10/1993EP0531065A2 Cycle up convergence of electrostatics in a tri-level imaging apparatus
03/10/1993EP0531064A2 ROS assisted toner patch generation for use in tri-level imaging
03/10/1993EP0531063A2 Charged area image loss control in a tri-level imaging apparatus
03/10/1993EP0531062A2 Facsimile apparatus
03/10/1993EP0531057A2 Method and apparatus for creating tri-level images
03/10/1993EP0531041A1 Adaptive DCT/DPCM video signal coding method
03/10/1993EP0531030A1 Method and device for image makeup
03/10/1993EP0531012A2 Control subsystem in an image output terminal
03/10/1993EP0530911A1 Photoconductor assembly with a read out unit
03/10/1993EP0530683A2 Apparatus for scanning drum inner face and method of scanning therefor
03/10/1993EP0530612A1 Side register and overload control in a sheet printing machine
03/10/1993EP0530533A1 Facsimile mail system
03/09/1993US5193169 Image data processing apparatus
03/09/1993US5193122 Method of processing a digital image
03/09/1993US5193110 Integrated services platform for telephone communication system
03/09/1993US5193013 Scanner with non-linearity compensating pixel clock
03/09/1993US5193012 Real-time conversion of still-video to half-tone for hard copy output (such as on a facsimile machine)
03/09/1993US5193011 Method and apparatus for producing variable width pulses to produce an image having gray levels
03/09/1993US5192999 Multipurpose computerized television
03/09/1993US5192973 Covering and cleaning device for the optical character generator in an electrophotographic printing device
03/07/1993CA2073398A1 Control subsystem in an image output terminal
03/04/1993WO1993004555A2 Linear sensor array eliminating tracking
03/04/1993WO1993004554A1 Color image sense reversal
03/04/1993WO1993004552A1 Thermal printer
03/04/1993WO1993004551A1 Film gate apparatus for a virtual contact color film scanner
03/04/1993WO1993004443A1 Printing process
03/04/1993WO1993004442A1 Method and apparatus for compensation for non-uniform illumination
03/04/1993DE4226518A1 Verfahren und vorrichtung zur erzeugung von steuersignalen fuer einen farbdrucker Method and apparatus for generating control signals for a color printer
03/04/1993DE4128561A1 Photographic image production using pointwise illumination of light sensitive carrier material - focussing CRT generated light beam, controllable in position and intensity, sharply on carrier material by lens
03/04/1993DE4128468A1 Vorrichtung zur strahlteilung Apparatus for beam distribution
03/04/1993DE4128010A1 Facsimile appts. secrecy system - uses identity card or push buttons to supply signal to release received data from memory for print-out
03/03/1993EP0530089A2 Communication apparatus having function of generating calling signal
03/03/1993EP0530034A1 Image transmission apparatus
03/03/1993EP0530027A2 An image digitizing system
03/03/1993EP0529967A2 Apparatus and method for transforming the digital representation of a color input image
03/03/1993EP0529965A2 High speed screening of images
03/03/1993EP0529929A1 Thermal transfer of images
03/03/1993EP0529919A2 Method of scheduling copy sheets
03/03/1993EP0529918A1 Spot position control in an optical output device
03/03/1993EP0529903A2 Image processing system
03/03/1993EP0529864A1 Network video server apparatus and method
03/03/1993EP0529788A1 Data transmitting and/or receiving device
03/03/1993EP0529785A1 Raster output scanner with process direction spot position control
03/03/1993EP0529746A2 Image processing apparatus
03/03/1993EP0529745A2 Image processing apparatus
03/03/1993EP0529744A2 Image processing apparatus
03/03/1993EP0529615A2 Facsimile apparatus
03/03/1993EP0529614A2 Facsimile apparatus
03/03/1993EP0529561A2 Laser diode mount and auto-focus means
03/03/1993EP0529539A2 High resolution thermal printers
03/03/1993EP0529534A2 Apparatus and method for printing half-tone proof images
03/03/1993EP0529531A2 Methods for measuring laser performance in laser printers
03/03/1993EP0529403A2 A queue based technique for handling proof requests in a direct digital color proofing system
03/03/1993EP0529284A2 An unidirectional communication system channel selection device and an unidirectional communication system multimedia
03/03/1993EP0529193A2 Image-reading device
03/03/1993EP0529163A1 Print-head and plate-cleaning assembly
03/03/1993EP0529104A2 Telecommunication system
03/03/1993EP0529068A1 Production of second-generation camera-original control tool photographies via photography of digitally-generated transparency of an original scene
03/03/1993EP0216928B1 Method and apparatus for compressing image data
03/02/1993US5191640 Method for optimal discrete rendering of images
03/02/1993US5191623 Image reading and processing apparatus
03/02/1993US5191604 Communication apparatus with private branch exchange for communicating with extension or external stations
03/02/1993US5191603 Message receiving apparatus
03/02/1993US5191525 System and method for extraction of data from documents for subsequent processing
03/02/1993US5191466 High resolution two-directional optical scanner
03/02/1993US5191447 Scanning beam control system with translated reference scale
03/02/1993US5191445 Image reader
03/02/1993US5191444 Method of converting gradation of a digital image and a circuit thereof and a print density controlling apparatus for a printer and a printer using this method
03/02/1993US5191443 Image processor
03/02/1993US5191442 Apparatus for scanning a document
03/02/1993US5191441 Image reading device
03/02/1993US5191440 Multiple photocopier system with memory and composite processing
03/02/1993US5191439 Image signal processing apparatus
03/02/1993US5191438 Facsimile device with skew correction and text line direction detection
03/02/1993US5191435 Image pickup device
03/02/1993US5191429 Electronic printing system for printing multiple images with determination of the maximum number of reduced size images to be optimally printed on a sheet of detected size without interference
03/02/1993US5191428 Paper feeding device capable of quickly replacing recording paper
03/02/1993US5191415 Still image transmitting method
03/02/1993US5191413 System and method for eliminating interlace motion artifacts in captured digital video data
03/02/1993US5191410 Interactive multimedia presentation and communications system
03/02/1993US5191409 Color scanning system
03/02/1993US5191406 Method and apparatus for rapid scanning of color images
03/02/1993US5191399 Solid-state imaging device with improved photodetector
03/02/1993US5191377 Original scanning apparatus with electrical connecting member
03/02/1993US5191361 Image reproducing system
03/02/1993US5191353 Thermal control mechanism for multiple print bar system
03/02/1993US5191202 Photoelectric conversion device
02/1993
02/25/1993DE4127700A1 Audio frequency monitor for facsimile connected to telephone station and answering machine - presents high impedance to subscriber line until answering machine has respond to incoming transmission with switching
02/25/1993DE4127560A1 Aufzeichnungsverfahren Recording method
02/24/1993EP0528642A2 Data stream generator
02/24/1993EP0528618A2 Image forming apparatus
02/24/1993EP0528555A2 Dual mode correction of image distortion in a xerographic printing apparatus
02/24/1993EP0528543A1 A method and apparatus for controlling the position of a spot of light
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